From Longman Dictionary of Contemporary Englishlogjamlog‧jam /ˈlɒɡdʒæm $ ˈlɒːɡ-, ˈlɑːɡ-/ noun [countable] 1 PROBLEMa situation in which a lot of problems are preventing progress from being made2 TAFa tightly packed mass of floating logs on a river
Examples from the Corpus
logjam• Reaching the ridge, a logjam of bewildered novices develops.• Ten days later, Sadat arrived in Jerusalem on the historic visit that broke the Middle East logjam.• Little wonder that the odd logjam has formed.• This time, I felt sure, the logjam was going to move.• The logjam is occurring because of increased demand on the global communications network.• The logjam on the railways is now playing havoc with the national economy.• Extra work has been commissioned to determine which highway links and junctions would need improvement to relieve any potential traffic logjam. 